CHEMISTRY 103 – Practice Sheet #4 – Naming Compounds and Writing Formulas
Chapter 2
Prepared by Dr. Tony Jacob
http://www.chem.wisc.edu/areas/clc (Resource page)
1. Name the compounds below. Includes molecular and ionic compounds, polyatomic ions, acids, and
transition metals. (Note: Not all instructors cover the same ions and some instructors skip transition metal compounds!)
a. Na2S
b. CaO
c. N2O
d. K3N
e. NO
f. Li3P
g. NaNO3
h. Ca3(PO4)2
i. MgF2
j. (NH4)2SO4
k. P2O5
l. CaHPO4
m. HBr
n. Sc(OH)3
o. HNO3
p. NH4NO3
q. FeCl3
r. (NH4)2O
s. CuO
t. HCl
u. NaHCO3
v. Al(C2H3O2)3
w. H2SO4
x. LiHSO3
y. SO3
z. HC2H3O2
aa. NaClO3
bb. Mn(ClO4)3
cc. HClO4
dd. Zn(CN)2
ee. NaC2H3O2
ff. K2SO4
gg. H2CO3
hh. H3PO4
2. Write formulas for the compounds below. Includes molecular and ionic compounds, polyatomic ions, acids,
and transition metals. (Note: Not all instructors cover the same ions and some instructors skip transition metal compounds!)
a. magnesium bromide
b. sodium nitrite
c. calcium nitride
d. lithium sulfate
e. ammonium chlorite
f. sulfur dioxide
g. potassium monohydrogen phosphate
h. calcium hydrogen carbonate
i. phosphoric acid
j. dinitrogen trioxide
k. acetic acid
l. manganese(V) sulfide
m. titanium(IV) oxide
n. carbon monoxide
o. nickel(II) sulfite
p. sodium phosphide
q. silver(I) nitrate
r. lead(II) hydroxide
s. chromium(VI) chloride
t. barium hydroxide
u. ammonium dihydrogen phosphate
v. chloric acid
w. cobalt(II) cyanide
x. aluminum iodide
y. boron trichloride
z. ammonia
ANSWERS
1. a. sodium sulfide b. calcium oxide c. dinitrogen monoxide d. potassium nitride
e. nitrogen monoxide f. lithium phosphide g. sodium nitrate h. calcium phosphate
i. magnesium fluoride j. ammonium sulfate k. diphosphorous pentoxide
l. calcium monohydrogen phosphate m. hydrogen bromide or hydrobromic acid n. scandium(III) hydroxide
o. nitric acid p. ammonium nitrate q. iron(III) chloride r. ammonium oxide s. copper(II) oxide
t. hydrogen chloride or hydrochloric acid u. sodium hydrogen carbonate (common: sodium bicarbonate)
v. aluminum acetate w. sulfuric acid x. lithium hydrogen sulfite (common: lithium bisulfite)
y. sulfur trioxide z. acetic acid aa. sodium chlorate bb. manganese(III) perchlorate
cc. perchloric acid dd. zinc(II) cyanide ee. sodium acetate ff. potassium sulfate
gg. carbonic acid hh. phosphoric acid
2. a. MgBr2 b. NaNO2 c. Ca3N2 d. Li2SO4 e. NH4ClO2 f. SO2 g. K2HPO4 h. Ca(HCO3)2
i. H3PO4 j. N2O3 k. HC2H3O2 l. Mn2S5 m. TiO2 n. CO o. NiSO3 p. Na3P q. AgNO3
r. Pb(OH)2 s. CrCl6 t. Ba(OH)2 u. NH4H2PO4 v. HClO3 w. Co(CN)2 x. AlI3 y. BCl3 z. NH3